Very poor customer service from the Pot Luck Club manager.

Very poor customer service from the Pot Luck Club manager. We had a small miscommunication as we were not notified that there would be a set menu after changing our reservation from Saturday evening to Sunday lunch. When I brought this up with the manager, he reacted extremely poorly by not believing me that we were not informed, and saying that 'You could have opted out at the beginning of the meal when you were told it was a set menu' - bear in mind that we would lose our deposit and I was there with 7 friends to celebrate my birthday. After chatting with him, he said he would think about what to do and get back to me. He never came back to me with an answer.